Walking cane base



FIG. 1 is a top perspective view of a walking cane base showing my new design;

FIG. 2 is a side view thereof, the opposite side being a mirror image thereof;

FIG. 3 is front elevation view thereof, the back elevation view being a mirror image thereof;

FIG. 4 is a top plan view thereof; and,

FIG. 5 is a bottom plan view thereof.

The broken lines represent portions of the article and form no part of the claimed design. 

CLAIM The ornamental design for a walking cane base, as shown and described. 